NOTES:a. Called Sigurd or Siward, he was addressed as Earl in a charter of King Edward, dated probably 1050 to 1052. His son and heir, Waltheof, being too young at his father's death in 1055, the earldoms of Northampton and Northumberland were bestowed on Tostig, a favorite of the King.b. He become Earl of Northampton upon the banishment of Tostig in Oct 1065. He is not known to have opposed the Conqueror in 1066, but was taken to Normandy the following year. In 1069 he joined the Danes in their descent on Yorkshire, distinguishing himself in the attack on the the city of York. When the Danes left England, he submitted himself to William in Jan 1070, and was restored to his earldom of Northampton, as well as to his father's earldom of Northumberland in 1072. In mid-1075 he was enticed to join the conspiracy of the Earls of Norfolk and Hereford to seize England for themselves, but quickly repented and went to Normandy to seek the pardon of King William. While William appeared to have taken the matter lightly at the time, the following Christmas, Waltheof was brought to trial at Westminster (with his wife Judith being a witness), where he was imprisoned, convicted, and then beheaded the following May. He left three daughters, (1) Maud, wife of Simon de St. Liz or Senlis and David I, King of Scotland; (2) Judith or Alice, wife of Ralph de Toeni the younger, and (3) a daughter, whose name is not known, but who lived to adulthood and married.